CN209745768U - Simple tool for measuring permeability coefficient of wetland - Google Patents
Simple tool for measuring permeability coefficient of wetland Download PDFInfo
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- CN209745768U CN209745768U CN201920331210.7U CN201920331210U CN209745768U CN 209745768 U CN209745768 U CN 209745768U CN 201920331210 U CN201920331210 U CN 201920331210U CN 209745768 U CN209745768 U CN 209745768U
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- permeability coefficient
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Abstract
A simple tool for measuring the permeability coefficient of the wetland is provided, aiming at overcoming the defect that the prior art does not have a simple, quick and effective tool for measuring the permeability coefficient of the wetland, and the simple tool comprises: the columniform surveys buret, the outer wall of surveying buret be equipped with and imbed degree of depth sign, the inner wall of surveying buret is evenly laid and is equipped with a set of water level height sign. The utility model relates to a simply, it is simple and convenient to use, can survey the osmotic coefficient of wetland fast effectively, be fit for constructed wetland's use in design.
Description
Technical Field
The utility model relates to an artificial wetland design field especially relates to a simple and easy instrument of survey wetland osmotic coefficient.
Background
One important index in the design process of the artificial wetland is hydraulic load, wherein the hydraulic load refers to the daily water treatment amount per unit area, and the hydraulic load is calculated according to the following formula: qhs is Q/A (qhs is surface hydraulic load, Q is artificial wetland design water quantity, and A is artificial wetland area). In essence, the upper limit value of the wetland hydraulic load can be converted into the permeability coefficient, so in the actual engineering design case, in order to make the design more accurate and reasonable, the design value of the hydraulic load can be corrected according to the measured permeability coefficient; in the management of the wetland, the sewage treatment scale can be adjusted through the permeability coefficient; meanwhile, the normal operation age of the wetland can be predicted according to the change condition of the permeability coefficient.
Therefore, for the constructed wetland, a simple tool for measuring the permeability coefficient of the wetland is designed, the permeability coefficient of the wetland can be quickly obtained, and the simple tool is applied to guidance of design and management of wetland engineering.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes do not have the shortcoming of a simple and easy, quick and instrument of survey wetland osmotic coefficient effectively among the prior art, provide a simple and easy instrument of survey wetland osmotic coefficient.
the utility model discloses the technical scheme who realizes that the purpose adopts is: a simple tool for determining permeability coefficient of wetland, the simple tool comprising: the columniform surveys buret, the outer wall of surveying buret be equipped with and imbed degree of depth sign, the inner wall of surveying buret is evenly laid and is equipped with a set of water level height sign.
Further, the water level height marks are ribs.
Furthermore, the surface of the water level height mark is provided with coatings with different colors.
Furthermore, the outer wall of one end of the measuring pipe is provided with a circle of bosses.
Furthermore, a pair of handles is arranged at the upper end of the outer wall of the measuring pipe.
The utility model has the advantages that: the main body is a cylindrical measuring tube, the outer wall of the main body is provided with an embedded depth mark, and the inner wall of the main body is provided with a water level height mark, so that the design is simple; the use is simple and convenient: when the wetland soil layer measuring device is used, the measuring tube is inserted into the wetland soil layer, water is injected into the measuring tube when the soil surface is flush with the embedded depth mark of the outer wall of the measuring tube, the water level is measured after the water level descending speed is stable, and the numerical value is calculated through a formula; the method is suitable for measuring the permeability coefficient of the constructed wetland, and can realize quick and effective measurement; the water level height marks on the inner wall are arranged into convex edges, so that water on the inner wall of the measuring pipe can be slowed down to flow down quickly along a gap between the inner wall of the measuring pipe and soil, and the measuring error is effectively reduced; when the measuring tube is inserted into soil, the upper end of the measuring tube is provided with a circle of bulges, which is beneficial to effectively striking the measuring tube and reduces the loss of the measuring tube; at the in-process of beating survey buret, survey a pair of handle on the buret outer wall and be favorable to fixed survey buret, reduce the vibrations of surveying buret and to staff's influence, guarantee staff's safety.
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a view in the direction B of fig. 1.
Fig. 4 is a partial enlarged view C of fig. 2.
In the attached drawing, 1 is a measuring tool body, 1-1 is an embedding depth mark, 1-2 is a water level height mark, 1-3 is a boss, and 1-4 is a handle.
Detailed Description
As shown in the attached drawings, the simple tool for measuring the permeability coefficient of the wetland of the embodiment comprises: the measuring tube comprises a cylindrical measuring tube 1, wherein embedded depth marks 1-1 are arranged on the outer wall of the measuring tube 1, and a group of water level height marks 1-2 are uniformly distributed on the inner wall of the measuring tube 1.
When the measuring pipe 1 is used, selecting a relatively flat piece in a target wet area, vertically arranging the measuring pipe 1 to be vertical to the surface of the wetland filler, fixing the measuring pipe 1 by holding by hands by a worker, beating the upper end of the measuring pipe 1 by other workers by using beating tools such as a hammer and the like, and vertically inserting the bottom end of the measuring pipe 1 into the wetland filler until the embedded depth mark 1-1 on the outer wall of the measuring pipe 1 is flush with the wetland filler; then, water is slowly injected into the measuring pipe from the upper end of the measuring pipe 1, and the water level inside the measuring pipe 1 continuously rises; stopping water injection, and then reducing the water level due to water seepage of wetland fillers; after the dropping rate of water in the measuring pipe 1 is approximately stable, water is continuously injected into the measuring pipe 1 to the highest water level mark of the water level height marks 1-2, water injection is stopped, the time for the water level to drop from the highest water level mark to the adjacent water level height mark is recorded, and finally, the result is calculated through the following formula:
Where ψ is a permeability coefficient in units of millimeters per second (mm/s); h is the height of the water level drop in millimeters (mm); t is time in seconds(s).
In the measurement process, as water continuously permeates into the wetland filler, the time t for the same water level descending height h is different, a group of data of the time t for the same water level descending height h is recorded, permeability coefficient values at different times are respectively calculated, and then the average value is taken to obtain the actual permeability coefficient psi of the wetland filler.
The hydraulic load of the whole wetland can be estimated through the permeability coefficient, the sewage treatment capacity of the whole wetland is estimated, and the method has an important effect on wetland management.
In the preferred embodiment, the water level height markers 1-2 are ribs. Because of surveying during buret 1 inserts soil, there is the gap between surveying buret 1's inner wall and the earth of surveying buret 1, leaks easily to in the actual measurement process, along surveying buret 1 inner wall down water infiltration ground relatively fast, will survey the high sign 1-2 of water level on buret 1 inner wall and set up to the bead, can slow down the velocity of flow of the water on surveying buret 1 inner wall, reduced measuring error effectively.
In the preferred embodiment, the surfaces of the water level height markers 1-2 are provided with coatings with different colors. The water level height marks 1-2 are coated with different colors, so that whether the water level of the inner wall of the measuring pipe 1 is positioned at the water level height marks 1-2 can be observed more clearly in use.
In the preferred embodiment, a circle of bosses 1-3 are arranged on the outer wall of one end of the measuring pipe 1. Because the pipe wall of the measuring pipe 1 is thin, when the measuring pipe 1 is hit to make the measuring pipe inserted into soil, the round of protrusion 1-3 on the outer wall of the top end of the measuring pipe 1 can ensure effective hitting, the condition that the inner wall is protruded and uneven due to hitting at the upper end of the measuring pipe 1 is avoided, and the loss of the measuring pipe 1 is reduced.
The measuring tube 1 is preferably provided with a pair of handles 1-4 at the upper end of its outer wall. When the measuring pipe 1 is started to be hit and inserted into soil, a worker needs to hold the pipe wall with hands to ensure that the measuring pipe 1 is upright, the vibration of the measuring pipe 1 in the hitting process can affect the worker, the worker can be injured due to misoperation, and therefore a pair of handles 1-4 is needed to be arranged at the upper end of the outer wall of the measuring pipe 1.
Claims (5)
1. The utility model provides a simple and easy instrument of survey wetland permeability coefficient which characterized in that simple and easy instrument includes: the measuring tube comprises a cylindrical measuring tube (1), wherein the outer wall of the measuring tube (1) is provided with embedded depth marks (1-1), and the inner wall of the measuring tube (1) is uniformly provided with a group of water level height marks (1-2).
2. The simple tool for measuring the permeability coefficient of the wetland according to claim 1, characterized in that the water level height markers (1-2) are ribs.
3. The simple tool for measuring the permeability coefficient of the wetland according to claim 1 or 2, characterized in that the surface of the water level height mark (1-2) is provided with coatings with different colors.
4. The simple tool for measuring the permeability coefficient of the wetland according to claim 1 is characterized in that a circle of bosses (1-3) are arranged on the outer wall of one end of the measuring pipe (1).
5. The simple tool for measuring the permeability coefficient of the wetland is characterized in that a pair of handles (1-4) are arranged on the outer wall of the measuring pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920331210.7U CN209745768U (en) | 2019-03-15 | 2019-03-15 | Simple tool for measuring permeability coefficient of wetland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920331210.7U CN209745768U (en) | 2019-03-15 | 2019-03-15 | Simple tool for measuring permeability coefficient of wetland |
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| Publication Number | Publication Date |
|---|---|
| CN209745768U true CN209745768U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920331210.7U Active CN209745768U (en) | 2019-03-15 | 2019-03-15 | Simple tool for measuring permeability coefficient of wetland |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544455A (en) * | 2021-12-30 | 2022-05-27 | 北京北华中清环境工程技术有限公司 | Undercurrent artificial wetland blocking positioning and blocking degree judging method |
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2019
- 2019-03-15 CN CN201920331210.7U patent/CN209745768U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544455A (en) * | 2021-12-30 | 2022-05-27 | 北京北华中清环境工程技术有限公司 | Undercurrent artificial wetland blocking positioning and blocking degree judging method |
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